akermanis@troa01.enet.dec.com (John Akermanis) (02/21/91)
I have a COCO III WITH A 20 meg and 15 meg hard disk, RGB monitor, 40 Trk and
80 Trk floppy, RS232 pak with 512K memory. I have been using the COCO now
since about 1981 and use only OS-9 since RSDOS is nice but limited to what
you can do. I use Basic09, Pascal, C and RSB from Burke & Burke (so my pre
OS-9 stuff written under RSDOS can run under OS-9). I don't profess to be an
expert in any of the languages but can get by. What is all this leading too?
Well I understand C enough to write some simple stuff and understand C code
written by others. Below is the C source for the VT100 emulator written by
Brian Marcotte found out in the usenet one day. I have used it for a couple of
years and have noted only couple of bugs in it. So this is where someone maybe
can help me locate one of the bugs which would most likely fix the other.
During sign on to the host VAX, VMS usually asks what term type you are, by
using one of the three known escape sequences (ESC Z, ESC[c or ESC[0c). The
emulator for the most part does not respond to any of these sequences even
though they are all coded in the source . Once in a while it does work correctly
after it has been used to log into one system and you do a 'set term/dev=vt100'.
Without resetting the emulator, if you were to log into the same system again
it does the 'who are you' routine correctly and the host knows it is a VT100.
The odd time it still does not do it right under another session.
Now I have looked at the code so much and see nothing wrong with escape
sequence handling. Here's the bottom line, can anyone else who either uses this
emulator can see in the code where the problems is or is does anyone else have
a similar problem with the emulator?
I'm beat as to what it is but have some thoughts, it could be some variable
not properly initialized or with the wrong value, or the escape sequence
has some obscure flaw which I cannot locate. Maybe the C library has a obsure
bug which the right conditions have been setup. I use the Microware C
compliler with the Kreider C library.
Can anyone help and spot the problem or have a suggestion as to how debug this
thing on a COCO?
----------------------------CUT HERE---------------------------------
#include <os9.h>
#define stdin_r 0
#define stdout_r 1
#define Case 1
#define echo 4
#define pause 7
#define eof 12
#define psc 15
#define kbi 16
#define kba 17
#define type 20
#define Baud 21
#define mark -96
#define space -32
#define even 96
#define odd 32
#define none 0
main(argc,argv)
int argc;
char **argv;
{
int path,count,emulation,x,y,a,t,l,kpm,ckm,ip,op,escmode,menuback,menufore,alt,baud,parity,stopbits,autolf,wordlen,top,bottom,ox,oy,ap,cp,cn,start,autocr,autowrap,relative,mainback,mainfore,mainbold,bold,inverse,underline,blink,test;
int tab[80],combuf[50];
char c;
char inbuf[128],outbuf[128],xbuf[15],ansibuf[200];
char scrnopt[32],oscrnopt[32],pathopt[32];
char parityx[5];
char *menu1 = " \x1f\x22 \x1f\x23\n\l \x1f\x20 VT-100 - MAIN MENU \x1f\x21\n\l\l / - This menu\n\l C - Change directory\n\l H - Hangup modem\n\l O - Options menu\n\l Q - Quit\n\l";
char *menu2 = " R - Reset terminal\n\l S - Shell\n\l 0123456789-,.<ENTER> - keypad keys\n\l SHIFT-1234 - PF1,PF2,PF3,PF4\n\l <UP><DOWN><LEFT><RIGHT> - Arrow keys\n\l\l Press key or <SPACE> to cancel: ";
char *quit = " \x1f\x22 \x1f\x23\n\l \x1f\x20 QUIT \x1f\x21\n\l\l Are you sure? ";
char *hangup = " \x1f\x22 \x1f\x23\n\l \x1f\x20 HANG UP MODEM \x1f\x21\n\l\l Are you sure? ";
char *change = " \x1f\x22 \x1f\x23\n\l \x1f\x20 CHANGE WORKING DIRECTORY \x1f\x21\n\l\l Enter new directory name: ";
char *optionmenu = " \x1f\x22 \x1f\x23\n\l \x1f\x20 OPTIONS \x1f\x21\n\l\l";
char *workdir = ".\n \n";
char *termstr = "OS-9 CRT VT-52 VT-100VIDTEX";
char *onoff = "OffOn ";
char *baudstr = "110 300 600 1200 2400 4800 9600 19200";
char *paritystr = "None Even Odd Mark Space";
char *wordstr = "87";
char *stopstr = "12";
if((path=open(*++argv,3))==-1){
printf("Error: Cannot open device.\n");
exit(1);
}
getopt(stdout_r,oscrnopt);
getopt(stdout_r,scrnopt);
scrnopt[Case]=0;
scrnopt[echo]=0;
scrnopt[pause]=0;
scrnopt[eof]=0;
scrnopt[psc]=0;
scrnopt[kbi]=0;
scrnopt[kba]=0;
setopt(stdout_r,scrnopt);
baud=3;
getopt(path,pathopt);
pathopt[Case]=0;
pathopt[echo]=0;
pathopt[pause]=0;
pathopt[eof]=0;
pathopt[psc]=0;
pathopt[kbi]=0;
pathopt[kba]=0;
pathopt[Baud]=baud;
pathopt[type]=0;
setopt(path,pathopt);
x=1;
y=1;
mainback=2;
mainfore=0;
menuback=1;
menufore=7;
mainbold=5;
kpm=0;
ckm=0;
emulation=3;
parity=0;
stopbits=0;
wordlen=0;
autolf=0;
top=1;
bottom=24;
ox=1;
oy=1;
escmode=0;
autocr=0;
autowrap=0;
relative=0;
bold=0;
underline=0;
blink=0;
inverse=0;
for(cp=1;cp<81;cp++) tab[cp]=!((cp-1)&7);
tab[80]=1;
parityx[0]=none;
parityx[1]=even;
parityx[2]=odd;
parityx[3]=mark;
parityx[4]=space;
if(owset(stdout_r,1,0,0,80,24,mainfore,mainback)==-1){
printf("Error: Window must be 80*24 text screen.");
}
writeln(stdout_r,"======================= This program is public domain =======================\n",80);
writeln(stdout_r,"____ ____ ___________ ___ _________ _________\n",78);
writeln(stdout_r,"\\ \\ / / | | / | / ___ \\ / ___ \\\n",79);
writeln(stdout_r," \\ \\ / / |___ ___| /_ | | / \\ | | / \\ |\n",80);
writeln(stdout_r," \\ \\ / / | | | | | | | | | | | |\n",80);
writeln(stdout_r," \\ \\ / / | | _____ | | | | | | | | | |\n",80);
writeln(stdout_r," \\ \\/ / | | |_____| | | | | | | | | | |\n",80);
writeln(stdout_r," \\ / | | __| |__ | | | | | | | |\n",80);
writeln(stdout_r," \\ / | | | | | \\___/ | | \\___/ |\n",80);
writeln(stdout_r," \\__/ |___| |________| \\_________/ \\_________/\n",79);
writeln(stdout_r,"\n",1);
writeln(stdout_r,"========================== Text Screen Version 1.0 ==========================\n",80);
writeln(stdout_r," by:\n",42);
writeln(stdout_r," Brian Marcotte\n",47);
writeln(stdout_r,"\n",1);
writeln(stdout_r,"US Mail : 69 Kearney Ave. | If you know of any way to make\n",78);
writeln(stdout_r," Auburn, NY 13021 | this program better, please\n",75);
writeln(stdout_r,"CompuServe: 72507,3535 | send me mail. If you make a\n",75);
writeln(stdout_r,"Delphi : BRIMARCOTTE | modification, please send a copy\n",80);
writeln(stdout_r,"GEnie : B.MARCOTTE | of the source.\n",62);
writeln(stdout_r,"BITNET : V090J78Y@UBVMSA |\n",46);
writeln(stdout_r,"INTERNET : V090J78Y@UBVMSA.CC.BUFFALO.EDU |\n",46);
writeln(stdout_r,"\n",1);
write(stdout_r,"============================= Press Any Key: ==============================",79);
write(stdout_r,"\x02\x4e\x37\x07",4);
read(stdin_r,&c,1);
cls(stdout_r);
for(;;){
if(_gs_rdy(stdin_r)>0){
read(stdin_r,&c,1);
op=0;
if(c>-1) outbuf[op++]=c;
else{
select: switch(alt=128+c){
case 's':
owset(stdout_r,1,0,0,80,24,menufore,menuback);
setopt(stdout_r,oscrnopt);
system("");
setopt(stdout_r,scrnopt);
owend(stdout_r,underline,blink,inverse);
break;
case 'q':
owset(stdout_r,1,30,9,19,5,menufore,menuback);
write(stdout_r,quit,63);
read(stdin_r,&c,1);
owend(stdout_r,underline,blink,inverse);
if(c=='y' || c=='Y'){
setopt(stdout_r,oscrnopt);
owend(stdout_r,0,0,0);
exit(0);
}
break;
case 'r':
reset: x=1;
y=1;
kpm=0;
ckm=0;
escmode=0;
write(stdout_r,"\x1f\x21\x1f\x23\x1f\x25",6);
xbuf[0]=0x1b;
xbuf[1]=0x32;
xbuf[2]=mainfore;
xbuf[3]=7;
write(stdout_r,xbuf,4);
if(emulation==3){
autocr=0;
relative=0;
autowrap=0;
top=1;
bottom=24;
bold=0;
underline=0;
blink=0;
inverse=0;
for(cp=1;cp<81;cp++) tab[cp]=!((cp-1)&7);
tab[80]=1;
}
cls(stdout_r);
break;
case 'h':
owset(stdout_r,1,30,9,19,5,menufore,menuback);
write(stdout_r,hangup,63);
read(stdin_r,&c,1);
owend(stdout_r,underline,blink,inverse);
if(c=='y' || c=='Y'){
close(path);
sleep(1);
path=open(*argv,3);
setopt(path,pathopt);
}
break;
case 'c':
owset(stdout_r,1,3,9,74,5,menufore,menuback);
write(stdout_r,change,185);
setopt(stdout_r,oscrnopt);
readln(stdin_r,workdir,100);
write(stdout_r,"\x05\x20",2);
setopt(stdout_r,scrnopt);
chdir(workdir);
owend(stdout_r,underline,blink,inverse);
break;
case 'o':
a=emulation;
owset(stdout_r,1,26,5,27,14,menufore,menuback);
write(stdout_r,optionmenu,63);
writeln(stdout_r," Emulation : \n",20);
writeln(stdout_r," Auto line feed : \n",20);
writeln(stdout_r,"\n",1);
writeln(stdout_r," Baud : \n",20);
writeln(stdout_r," Parity : \n",20);
writeln(stdout_r," Word length : \n",20);
writeln(stdout_r," Stop bits : \n",20);
write(stdout_r,"\l Enter first letter of\n\l item to change: ",44);
do{
write(stdout_r,"\x02\x33\x23",3);
write(stdout_r,termstr+emulation*6,6);
write(stdout_r,"\x02\x33\x24",3);
write(stdout_r,onoff+autolf*3,3);
write(stdout_r,"\x02\x33\x26",3);
write(stdout_r,baudstr+baud*5,5);
write(stdout_r,"\x02\x33\x27",3);
write(stdout_r,paritystr+parity*5,5);
write(stdout_r,"\x02\x33\x28",3);
write(stdout_r,wordstr+wordlen,1);
write(stdout_r,"\x02\x33\x29",3);
write(stdout_r,stopstr+stopbits,1);
write(stdout_r,"\x02\x32\x2c",3);
read(stdin_r,&c,1);
c=c|0x20;
switch(c){
case 'e':
if (++emulation==4) emulation=0;
break;
case 'a':
if (++autolf==2) autolf=0;
break;
case 'b':
if(++baud==8) baud=0;
break;
case 'p':
if(++parity==5) parity=0;
break;
case 'w':
if(++wordlen==2) wordlen=0;
break;
case 's':
if(++stopbits==2) stopbits=0;
case 45:
case 32:
break;
default:
write(stdout_r,"\7",1);
}
}while(c!=45 && c!=32);
pathopt[Baud]=baud+wordlen*32+stopbits*128;
pathopt[type]=parityx[parity];
setopt(path,pathopt);
owend(stdout_r,underline,blink,inverse);
if(a!=emulation) goto reset;
break;
case '/':
owset(stdout_r,1,20,4,40,16,menufore,menuback);
write(stdout_r,menu1,182);
write(stdout_r,menu2,180);
read(stdin_r,&c,1);
owend(stdout_r,underline,blink,inverse);
if(c>='A' && c<='Z') c=c|32;
c=c-128;
goto select;
default:
if(emulation>1){
switch(alt){
case '\\':
outbuf[op++]=28;
break;
case ']':
outbuf[op++]=29;
break;
case '^':
outbuf[op++]=30;
break;
case '_':
outbuf[op++]=31;
break;
case 12:
case 10:
case 9:
case 8:
outbuf[op++]=27;
if(emulation==3){
switch(ckm){
case 0:
outbuf[op++]='[';
break;
case 1:
outbuf[op++]='O';
}
}
switch(alt){
case 12:
outbuf[op++]='A';
break;
case 10:
outbuf[op++]='B';
break;
case 9:
outbuf[op++]='C';
break;
case 8:
outbuf[op++]='D';
break;
}
break;
case '+':
alt=',';
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '-':
case ',':
case '.':
case 13:
switch(kpm){
case 0:
outbuf[op++]=alt;
break;
case 1:
outbuf[op++]=27;
switch(emulation){
case 2:
outbuf[op++]='?';
break;
case 3:
outbuf[op++]='O';
}
outbuf[op++]=alt+64;
break;
}
break;
case '`':
alt='"';
case '!':
case '"':
case '#':
case '$':
outbuf[op++]=27;
if(emulation==3) outbuf[op++]='O';
outbuf[op++]=alt+47;
}
}
}
}
write(path,outbuf,op);
}
if((count=_gs_rdy(path))>0){
count=read(path,inbuf,count);
op=0;
switch(emulation){
case 0:
for(ip=0;ip<count;ip++){
outbuf[op++]=inbuf[ip];
if(autolf==1 && inbuf[ip]==13) outbuf[op++]=10;
}
break;
case 1:
for(ip=0;ip<count;ip++){
if(inbuf[ip]>31) outbuf[op++]=inbuf[ip];
else{
switch(inbuf[ip]){
case 7:
case 8:
case 10:
case 12:
outbuf[op++]=inbuf[ip];
break;
case 13:
outbuf[op++]=inbuf[ip];
if(autolf) outbuf[op++]=10;
}
}
}
break;
case 2:
for(ip=0;ip<count;ip++){
nowvt52: if(inbuf[ip]<=31){
switch(inbuf[ip]){
case 7:
outbuf[op++]=7;
break;
case 8:
if(x>1){
if((x--)!=80){
outbuf[op++]=8;
}
}
break;
case 9:
if (x<80){
t=8-((x-1)&7);
x+=t;
if(x>80){
x--;
t--;
}
while((t--)!=0) outbuf[op++]=6;
}
break;
case 10:
case 11:
case 12:
if(y<24) y++;
outbuf[op++]=10;
break;
case 13:
x=1;
outbuf[op++]=13;
if(autolf){
outbuf[op++]=10;
if(y<24) y++;
}
break;
case 24:
case 26:
escmode=0;
break;
case 27:
escmode=1;
}
}else{
switch(escmode){
case 0:
if(inbuf[ip]!=127){
if(++x>80){
if(y!=24){
outbuf[op++]=inbuf[ip];
outbuf[op++]=8;
}else{
write(stdout_r,outbuf,op);
op=0;
a=(bold) ? mainbold : mainfore;
owset(stdout_r,1,79,22,1,1,0,0);
owset(stdout_r,0,79,22,1,2,a,mainback);
xbuf[0]=inbuf[ip];
xbuf[1]=1;
xbuf[2]=31;
xbuf[3]=48;
write(stdout_r,xbuf,4);
owend(stdout_r,0,0,0);
owend(stdout_r,0,0,0);
}
if(x!=81) x=81;
}else outbuf[op++]=inbuf[ip];
}
break;
case 1:
switch (inbuf[ip]){
case 'A':
if(y>1){
outbuf[op++]=9;
y--;
}
break;
case 'B':
if(y<24){
outbuf[op++]=10;
y++;
}
break;
case 'C':
if(x<80){
outbuf[op++]=6;
x++;
}
break;
case 'D':
if(x>1){
outbuf[op++]=8;
x--;
}
break;
case 'H':
outbuf[op++]=1;
x=1;
y=1;
break;
case 'I':
if(y==1){
outbuf[op++]=31;
outbuf[op++]=48;
}else{
outbuf[op++]=9;
y--;
}
break;
case 'J':
outbuf[op++]=11;
break;
case 'K':
outbuf[op++]=4;
break;
case 'Y':
escmode=3;
l=0;
break;
case 'Z':
xbuf[0]=27;
xbuf[1]='/';
xbuf[2]='Z';
write(path,xbuf,3);
break;
case '=':
kpm=1;
break;
case '>':
kpm=0;
break;
case '<':
emulation=3;
escmode=0;
goto nowvt100;
}
escmode--;
break;
case 2:
if(l==0) l=inbuf[ip];
else{
outbuf[op++]=2;
outbuf[op++]=inbuf[ip];
outbuf[op++]=l;
x=inbuf[ip]-31;
y=l-31;
escmode=0;
}
}
}
}
break;
case 3:
for (ip=0;ip<count;ip++){
nowvt100: if(inbuf[ip]<=31){
switch(inbuf[ip]){
case 7:
outbuf[op++]=7;
break;
case 8:
if(x>1){
if((x--)!=81){
outbuf[op++]=8;
}
}
break;
case 9:
if (x<80){
do{
outbuf[op++]=6;
}while(!tab[++x] && x<80);
}
break;
case 10:
case 11:
case 12:
if(autocr){
outbuf[op++]=13;
x=1;
}
if(y==bottom){
write(stdout_r,outbuf,op);
op=0;
owset(stdout_r,0,0,top-1,80,bottom-top+1,mainfore,mainback);
xbuf[0]=2;
xbuf[1]=32;
xbuf[2]=bottom-top+32;
xbuf[3]=10;
write(stdout_r,xbuf,4);
owend(stdout_r,underline,blink,inverse);
}else{
if(y!=24){
y++;
outbuf[op++]=10;
}
}
break;
case 13:
x=1;
outbuf[op++]=13;
if(autolf){
if(y==bottom){
write(stdout_r,outbuf,op);
op=0;
owset(stdout_r,0,0,top-1,80,bottom-top+1,mainfore,mainback);
xbuf[0]=2;
xbuf[1]=32;
xbuf[2]=bottom-top+32;
xbuf[3]=10;
write(stdout_r,xbuf,4);
owend(stdout_r,underline,blink,inverse);
}else{
if(y!=24){
y++;
outbuf[op++]=10;
}
}
}
break;
case 24:
case 26:
escmode=0;
break;
case 27:
escmode=1;
}
}else{
switch(escmode){
case 0:
if(inbuf[ip]!=127){
if(++x>80){
if(x==81 || autowrap==0){
x=81;
if(y!=24){
outbuf[op++]=inbuf[ip];
outbuf[op++]=8;
}else{
outbuf[op++]=0x1f;
outbuf[op++]=0x21;
write(stdout_r,outbuf,op);
op=0;
a=(bold) ? mainbold : mainfore;
owset(stdout_r,1,79,22,1,1,0,0);
owset(stdout_r,0,79,22,1,2,a,mainback);
xbuf[0]=(inverse) ? 0x1f : 0;
xbuf[1]=(inverse) ? 0x20 : 0;
xbuf[2]=(underline) ? 0x1f : 0;
xbuf[3]=(underline) ? 0x22 : 0;
xbuf[4]=(blink) ? 0x1f : 0;
xbuf[5]=(blink) ? 0x24 : 0;
xbuf[6]=inbuf[ip];
xbuf[7]=1;
xbuf[8]=31;
xbuf[9]=48;
write(stdout_r,xbuf,10);
owend(stdout_r,0,0,0);
owend(stdout_r,underline,blink,inverse);
}
}else{
x=2;
if(y==bottom){
outbuf[op++]=13;
write(stdout_r,outbuf,op);
op=0;
owset(stdout_r,0,0,top-1,80,bottom-top+1,mainfore,mainback);
xbuf[0]=2;
xbuf[1]=32;
xbuf[2]=bottom-top+32;
xbuf[3]=10;
write(stdout_r,xbuf,4);
owend(stdout_r,underline,blink,inverse);
}else{
if(++y==25) y=24;
outbuf[op++]=6;
}
outbuf[op++]=inbuf[ip];
}
}else outbuf[op++]=inbuf[ip];
}
break;
case 1:
switch(inbuf[ip]){
case 'c':
x=1;
y=1;
kpm=0;
ckm=0;
escmode=0;
write(stdout_r,"\x1f\x21\x1f\x23\x1f\x25",6);
xbuf[0]=0x1b;
xbuf[1]=0x32;
xbuf[2]=mainfore;
xbuf[3]=7;
write(stdout_r,xbuf,4);
autocr=0;
relative=0;
autowrap=0;
top=1;
bottom=24;
bold=0;
underline=0;
blink=0;
inverse=0;
for(cp=1;cp<81;cp++) tab[cp]=!((cp-1)&7);
tab[80]=1;
cls(stdout_r);
break;
case 'E':
outbuf[op++]=13;
x=1;
case 'D':
if(y==bottom){
write(stdout_r,outbuf,op);
op=0;
owset(stdout_r,0,0,top-1,80,bottom-top+1,mainfore,mainback);
xbuf[0]=2;
xbuf[1]=32;
xbuf[2]=bottom-top+32;
xbuf[3]=10;
write(stdout_r,xbuf,4);
owend(stdout_r,underline,blink,inverse);
}else{
if(y!=24){
y++;
outbuf[op++]=10;
}
}
escmode=0;
break;
case 'H':
tab[x]=1;
escmode=0;
break;
case 'M':
if(y!=top){
outbuf[op++]=9;
if(--y<1) y=1;
}else{
owset(stdout_r,0,0,top-1,80,bottom-top+1,mainfore,mainback);
write(stdout_r,"\x1f\x30",2);
owend(stdout_r,underline,blink,inverse);
}
escmode=0;
break;
case '7':
ox=x;
oy=y;
escmode=0;
break;
case '8':
x=ox;
y=oy;
outbuf[op++]=2;
a=(x==81) ? 80 : x;
outbuf[op++]=a+31;
outbuf[op++]=y+31;
escmode=0;
break;
case '=':
kpm=1;
escmode=0;
break;
case '>':
kpm=0;
escmode=0;
break;
case '#':
escmode=2;
break;
case '(':
escmode=3;
break;
case ')':
escmode=4;
break;
case '[':
escmode=5;
ap=0;
break;
default:
escmode=0;
}
break;
case 2: /* Double height/Double width not supported */
escmode=0;
break;
case 3: /* Selectable fonts not supported */
escmode=0;
break;
case 4: /* Selectable fonts not supported */
escmode=0;
break;
case 5:
if((inbuf[ip]>='0' && inbuf[ip]<='9') || inbuf[ip]==';' || inbuf[ip]=='?') ansibuf[ap++]=inbuf[ip];
else{
cn=0;
start=0;
ansibuf[ap]=';';
for(cp=0;cp<=ap;cp++){
if(ansibuf[cp]=='?') ansibuf[cp]='-';
else{
if(ansibuf[cp]==';'){
combuf[cn++]=atoi(ansibuf+start);
start=cp+1;
}
}
}
switch(inbuf[ip]){
case 'A':
if(combuf[0]==0) combuf[0]=1;
if(y<top){
if(y=(y-combuf[0])<1) y=1;
}else{
if((y=y-combuf[0])<top) y=top;
}
a=(x==81) ? 80 : x;
outbuf[op++]=2;
outbuf[op++]=a+31;
outbuf[op++]=y+31;
break;
case 'B':
if(combuf[0]==0) combuf[0]=1;
if(y>bottom){
if(y=(y+combuf[0])>24) y=24;
}else{
if((y=y+combuf[0])>bottom) y=bottom;
}
a=(x==81) ? 80 : x;
outbuf[op++]=2;
outbuf[op++]=a+31;
outbuf[op++]=y+31;
break;
case 'C':
if(combuf[0]==0) combuf[0]=1;
if((x=x+combuf[0])>80) x=80;
outbuf[op++]=2;
outbuf[op++]=x+31;
outbuf[op++]=y+31;
break;
case 'D':
if(combuf[0]==0) combuf[0]=1;
if((x=x-combuf[0])<1) x=1;
outbuf[op++]=2;
outbuf[op++]=x+31;
outbuf[op++]=y+31;
break;
case 'H':
case 'f':
if(cn==1){
combuf[1]=1;
}
if((x=combuf[1])>80) x=80;
else{
if(x<1) x=1;
}
if(combuf[0]==0) combuf[0]=1;
if(relative){
if((y=top+combuf[0]-1)>bottom) y=bottom;
}else{
if((y=combuf[0])>24) y=24;
}
outbuf[op++]=2;
outbuf[op++]=x+31;
outbuf[op++]=y+31;
break;
case 'm':
for(cp=0;cp<cn;cp++){
switch(combuf[cp]){
case 0:
outbuf[op++]=0x1f;
outbuf[op++]=0x21;
inverse=0;
outbuf[op++]=0x1f;
outbuf[op++]=0x23;
underline=0;
outbuf[op++]=0x1f;
outbuf[op++]=0x25;
blink=0;
outbuf[op++]=0x1b;
outbuf[op++]=0x32;
outbuf[op++]=mainfore;
bold=0;
break;
case 1:
outbuf[op++]=0x1b;
outbuf[op++]=0x32;
outbuf[op++]=mainbold;
bold=1;
break;
case 4:
outbuf[op++]=0x1f;
outbuf[op++]=0x22;
underline=1;
break;
case 5:
outbuf[op++]=0x1f;
outbuf[op++]=0x24;
blink=1;
break;
case 7:
outbuf[op++]=0x1f;
outbuf[op++]=0x20;
inverse=1;
}
}
break;
case 'K':
if(cn==0) combuf[0]=0;
switch(combuf[0]){
case 0:
outbuf[op++]=0x1f;
outbuf[op++]=0x21;
outbuf[op++]=4;
if(inverse){
outbuf[op++]=0x1f;
outbuf[op++]=0x20;
}
break;
case 1:
if(x>1){
write(stdout_r,outbuf,op);
op=0;
owset(stdout_r,0,0,y-1,x-1,1,mainfore,mainback);
write(stdout_r,"\x0c",1);
owend(stdout_r,underline,blink,inverse);
}
break;
case 2:
outbuf[op++]=0x1f;
outbuf[op++]=0x21;
outbuf[op++]=3;
if(inverse){
outbuf[op++]=0x1f;
outbuf[op++]=0x20;
}
break;
}
break;
case 'J':
if(cn==0) combuf[0]=0;
switch(combuf[0]){
case 0:
outbuf[op++]=0x1f;
outbuf[op++]=0x21;
outbuf[op++]=11;
if(y==23){
outbuf[op++]=10;
outbuf[op++]=3;
outbuf[op++]=6;
}
if(inverse){
outbuf[op++]=0x1f;
outbuf[op++]=0x20;
}
break;
case 1:
if(y>1){
write(stdout_r,outbuf,op);
op=0;
owset(stdout_r,0,0,0,80,y-1,mainfore,mainback);
write(stdout_r,"\x0c",1);
owend(stdout_r,underline,blink,inverse);
}
if(x>1){
write(stdout_r,outbuf,op);
op=0;
owset(stdout_r,0,0,y-1,x-1,1,mainfore,mainback);
write(stdout_r,"\x0c",1);
owend(stdout_r,underline,blink,inverse);
}
break;
case 2:
outbuf[op++]=0x1f;
outbuf[op++]=0x21;
outbuf[op++]=12;
outbuf[op++]=2;
outbuf[op++]=x+31;
outbuf[op++]=y+31;
if(inverse){
outbuf[op++]=0x1f;
outbuf[op++]=0x20;
}
}
break;
case 'r':
if(cn==1 || combuf[1]>24) combuf[1]=24;
if(combuf[0]<1) combuf[0]=1;
else{
if(combuf[0]>24) combuf[0]=24;
}
if(combuf[1]>=combuf[0]){
top=combuf[0];
bottom=combuf[1];
if(relative) y=top;
else y=1;
x=1;
outbuf[op++]=2;
outbuf[op++]=x+31;
outbuf[op++]=y+31;
}
break;
case 'g':
switch(combuf[0]){
case 0:
tab[x]=0;
break;
case 3:
for(cp=1;cp<80;cp++) tab[cp]=0;
}
break;
case 'h':
for(cp=0;cp<cn;cp++){
switch(combuf[cp]){
case 20:
autocr=1;
break;
case -1:
ckm=1;
break;
case -2:
emulation=3;
break;
case -6:
relative=1;
y=top;
x=1;
outbuf[op++]=2;
outbuf[op++]=x+31;
outbuf[op++]=y+31;
break;
case -7:
autowrap=1;
}
}
break;
case 'l':
for(cp=0;cp<cn;cp++){
switch(combuf[cp]){
case 20:
autocr=0;
break;
case -1:
ckm=0;
break;
case -2:
emulation=2;
top=1;
bottom=24;
bold=0;
inverse=0;
underline=0;
blink=0;
outbuf[op++]=31;
outbuf[op++]=0x21;
outbuf[op++]=31;
outbuf[op++]=0x23;
outbuf[op++]=31;
outbuf[op++]=0x25;
outbuf[op++]=27;
outbuf[op++]=0x32;
outbuf[op++]=mainfore;
goto nowvt52;
case -6:
relative=0;
x=1;
y=1;
outbuf[op++]=2;
outbuf[op++]=x+31;
outbuf[op++]=y+31;
break;
case -7:
autowrap=0;
}
}
case 'n':
switch(combuf[0]){
case 6:
sprintf(xbuf,"\x1b[%02d;%02dR",x,y);
write(path,xbuf,8);
break;
case 5:
xbuf[0]=27;
xbuf[1]='[';
xbuf[2]='0';
xbuf[3]='n';
write(path,xbuf,4);
}
break;
case 'c':
if(combuf[cp]==0){
sprintf(xbuf,"\x1b[?1;0c");
write(path,xbuf,7);
}
break;
}
escmode=0;
}
}
}
}
}
write(stdout_r,outbuf,op);
}
}
}
owset(path,svs,cpx,cpy,szx,szy,prn1,prn2)
int path,svs,cpx,cpy,szx,szy,prn1,prn2;
{
char buffer[9];
buffer[0]=27;
buffer[1]=34;
buffer[2]=svs;
buffer[3]=cpx;
buffer[4]=cpy;
buffer[5]=szx;
buffer[6]=szy;
buffer[7]=prn1;
buffer[8]=prn2;
write(path,buffer,9);
}
owend(path,underline,blink,inverse)
int path,underline,blink,inverse;
{
char buffer[8];
int p;
p=0;
buffer[p++]=27;
buffer[p++]=35;
if(underline){
buffer[p++]=31;
buffer[p++]=34;
}
if(blink){
buffer[p++]=31;
buffer[p++]=36;
}
if(inverse){
buffer[p++]=31;
buffer[p++]=32;
}
write(path,buffer,p);
}
cls(path)
int path;
{
write(path,"\x0c",1);
}
setopt(path,buffer)
int path;
char *buffer;
{
struct registers reg;
reg.rg_a=path;
reg.rg_b=0;
reg.rg_x=buffer;
_os9(I_SETSTT,®);
}
getopt(path,buffer)
int path;
char *buffer;
{
struct registers reg;
reg.rg_a=path;
reg.rg_b=0;
reg.rg_x=buffer;
_os9(I_GETSTT,®);
}
----------------------------CUT HERE---------------------------------
{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}
{} John Akermanis {} akermanis%troa01.enet.dec.com {}
{} Digital Equipment {} DTN 631-7448 {}
{} Toronto {} EXT (416)730-7448 {}
{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}